The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2005
Filed:
Jun. 07, 2002
Applicants:
Karlheinz Bing, Remseck, DE;
Martin Rühle, Stuttgart, DE;
Fritz Warth, Stuttgart, DE;
Frank Winger, Stuttgart, DE;
Inventors:
Karlheinz Bing, Remseck, DE;
Martin Rühle, Stuttgart, DE;
Fritz Warth, Stuttgart, DE;
Frank Winger, Stuttgart, DE;
Assignee:
Mahle GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K001/76 ; B23P017/00 ;
U.S. Cl.
CPC ...
Abstract
The aim of the invention is to produce a light-alloy bearing bush with a rough external surface. To achieve this, particles, which are subsequently surrounded in part by the molten metal, are applied to the surface of the casting mould. When the bearing bush is released from the mould, the particles remain in said bush and are subsequently removed from the bearing bush preform either mechanically or by being dissolved in liquid.